Revert "Updated UserActivity, RestaurantHomeActivity, and DineOnConstants for the DiningSessionCallback in UserActivity"

This reverts commit db08c7fbc3c83a8314d58f4fe03c64057e48d59e.
Revert "Revert "Updated UserActivity, RestaurantHomeActivity, and DineOnConstants for the DiningSessionCallback in UserActivity""

This reverts commit 9191e9e3576983b0d2c18d148b16f45effda2a68.
Fixed starting of RestaurantHomeActivity